Spindle



(No Model.)

J. P. KELLY.

SPINDLE.

No. 499,128. Patented June, 1893.

UNITED STATES PATENT Ormea r JOHN P. KELLY, OF SACO, MAINE.

SPINDLE.

SPECIFICATION forming part of Letters Patent No. 499,123, dated J une 6, 1893. Application filed September 8, 1892. Serial No. 445,314. (No model.)

.To all whom t may concern.:

Be it known that I, JOHN P. KELLY, of Saco, in the county of York and State of Maine, have invented certain new and useful Improvements in Spindles; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specilication, in which- Figure l is a central vertical section of a sleeve whirl spindle embodying myinvention. Fig. 2 is a detail in elevation of my improved step, and the same letters refer to like parts.

This invention relates to improvements in spindles and has for its object to provide a spindle with means whereby it may be enabled to center itself quickly and surely when carrying an unbalanced load.

It consists essentially in aspindle supporting case having an interior screw thread cut therein near the bottom and a step for the foot of the spindle having a thread cut thereon and adapted to screw into the thread made in said case, said screw threaded portion litting loosely in the threads in the case, so as to permit a slight lateral motion in all directions to the top of the step. The bottom of said step may be made cone shaped and in the top is a depression in which the bottom of the spindle rests and an indent adapted to receive a screw-driver to turn the step in and out.

In said drawings a represents a spindle case having its upper end c flaring and b a spindle. In said flaring end is placed a lateral bearing cl, its external wall fitting closely the internal wall of said iiaring end. In the bottom of the spindle case is a step e having a screw thread g cut on its side near the bottom and adapted to fit loosely in the thread fcut in the Wall of the spindle case, when the step is screwed down. The bottom of the step may terminate in a cone shaped point adapted to rest on the bottom of the spindle case as seen in Fig. 1. In the top of the step is a slight depressioni adapted to receive the pointed end of the spindle and extending transversely across the top is made a groove j to receive the end of a screw driver when screwing the step into place. The making of the threads in the step smaller than those in the spindle case into which they lit leaves the step loose and allows the top to move slightly in a lateral direction and with equal ease and certainty in every direction. At the same time the threads prevent the step from getting out 0f position.

The advantages are that the step cannot get out of position the top of the step moves laterally with equal facility in all directions thus readily allowing the spindle to center itself under an unbalanced load, the step can be easily taken out and replaced, the spindle case is not weakened by the thread and the step and spindle case made in this way is cheaper and moredurablethan any now in use.

I claiml. The combination with a spindle supporting case having a screw thread cut in the Wall thereof near the bottom, of a step having a screw thread cut thereon and adapted to be screwed into the thread in said case and lit loosely therein, said step having a depression and a transversegroove in the top thereof substantially as and for the purposes set forth.

2. The combination with a spindle supporting case having a screw thread cut in the wall thereof near the bottom, of a step having a thread cut thereon and adapted to screw into the thread in said case and lit loosely therein, said step having its bottom made conical, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JOHN P. KELLY.

Witnesses:

ELeIN C. VERRILL, NATHAN CLIFFORD. 

